Somdet Phranangchao Soamanat Vadhanavadi, or Queen Soamanat (1834-1851), was the first queen of Mongkut, though for only nine months. Princess Soamanat was a daughter of Prince Lakhananukun (son of Jessadabodindra) and Princess Ngiw. Since her father was Phra Ong Chao, Somanat was destined to be Mom Chao. However, Jessadabodindra specially granted her the title of Phra Ong Chao i.e. princess. In 1851, upon his coronation, Mongkut married Princess Somanat, them she became the queen. In the same year she gave birth to a prince, but the prince shortly died. Queen Soamanat herself died two months after.